NEJE software provides automatic low light. If you use laserGRBL and lightburn software to adjust the focus, you need to enter a command: M3 S1; and give a motion command, for example: G0 x10 y10 f1000; so that low light can be lit;
N40630 module: If it is mainly used for engraving, adjust the focus to a distance of 5mm below the light barrier; then slide the laser through a 5mm spacer to use a fixed focus method;
The cutting and focusing methods are as follows:
NOTE: The A40640 is an adjustable focus module. Guide image above is a guide for the best adjustment settings. You can use a flat-blade screwdriver to adjust the focus position. Proper focus selection is a critical factor for cutting. You may need to try more few times. In addition, adding air assist will enhance cutting and engraving results, resulting in cleaner edges and enhanced cutting thickness and cutting efficiency.
1.Step 1: Adjust the bottom of the module and the cut honeycomb panel to a fixed height, refer to the picture above. (Prepare a ruler)
2.Adjust the focus to a fixed height, refer to the picture above. It is recommended to use an object with a fixed thickness and place a gray cardboard on it to assist in adjusting the focus.
3.Simply put the restricted inner thickness directly on the cutting platform.
note: A40640 has a built-in zoom lens. If it does not meet your expectations, you can use a flat-blade screwdriver to screw the lens to the bottom. This is a standard reference.